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Facial expressions and communication

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Facial expressions comprise a considerable amount of nonverbal communication. With our 80 facial muscles we can create more than 7, facial expressions. It is one of the most difficult types of nonverbal communication to master the subtle meanings and to be able to catch micro-expressions. Some facial expressions are similar where ever we are in the world.
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Frontiers | Facial Expressions, Emotions, and Sign Languages | Psychology

Whether at a birthday party in Brazil, a funeral in Kenya or protests in Hong Kong, humans all use variations of the same facial expressions in similar social contexts, such as smiles, frowns, grimaces and scowls, a new study from the University of California, Berkeley, shows. The findings, published today, Dec. Researchers at UC Berkeley and Google used machine-learning technology known as a "deep neural network" to analyze facial expressions in some 6 million video clips uploaded to YouTube from people in countries spanning North, Central and South America, Africa, Europe, the Middle East and Asia. Cowen created an online interactive map that demonstrates how the algorithm tracks variations of facial expressions that are associated with 16 emotions. In addition to promoting cross-cultural empathy, potential applications include helping people who have trouble reading emotions, such as children and adults with autism, to recognize the faces humans commonly make to convey certain feelings. The typical human face has 43 different muscles that can be activated around the eyes, nose, mouth, jaw, chin and brow to make thousands of different expressions. First, researchers used Cowen's machine-learning algorithm to log facial expressions shown in 6 million video clips of events and interactions worldwide, such as watching fireworks, dancing joyously or consoling a sobbing child.
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4.2 Types of Nonverbal Communication

Social communication uses verbal and nonverbal language. We examined the degree of trust and brain activity when verbal and facial expressions are incongruent. As an index for degree of trust, subjects were asked to offer a donation when told that the person in the photograph was troubled financially. VAS scores for positive smile condition were significantly higher than those for the other conditions.
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Some are victims, others are suspects — but in either case I need to learn the truth, and do so by placing reliance upon the one undeniable universal language as exemplified in the way our facial expressions and body language correspond. It is also pertinent to note that, even without training or specific awareness and almost instinctively, people will apply the same assessment criteria, even unwittingly, to your speech and actions as well, and therefore for the interrogator it is even more important to understand and be able to manipulate the talent to seek to achieve the stated objectives. The six basic emotions , generally are easily identifiable in all, and by all, are: happy, angry, sad, fearful, surprised and disgusted. These emotions are universal and no matter what part of the world from which you come or what language you speak, your facial expressions will always be the same and replicated by persons who otherwise cannot understand a word you are saying.
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